User manual FURMAN RR-131

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[. . . ] ® GRAPHIC EQUALIZERS MODELS RR-215, RR-131, and RR-231 FEATURES l Three models: RR-215: Dual 15 Band Graphic Equalizer RR-131: Single 31 Band Graphic Equalizer RR-231: Dual 31 Band Graphic Equalizer 20 mm sliders with center detents used throughout Output level matching controls with 0 to 10 dB range Bypass and Range buttons with LED indicators; Range buttons allow ±6 dB or ±12 dB slider adjustment Low Pass and High Pass buttons (RR-215) or sweepable controls (RR-131, RR-231) Clip LEDs indicate overload conditions Unbalanced RCA, as well as balanced 1/4" TRS phone and XLR connectors, for all inputs and outputs Ground lift switches Dual voltage switch (100/120 or 200/240 VAC) adjustment of ±6 dB or ±12 dB, depending on the setting of the Range switch. All models are built using compact 20 mm sliders, allowing a full set of 30 or 31 sliders to fit in only a single rack space. [. . . ] The RR-215 has High Pass buttons which cut lows below 40 Hz, and Low Pass buttons which cut highs above 16 kHz. The RR-131 and RR-231 provide adjustable controls for High and Low Pass, allowing the cutoff frequencies to be set anywhere from 10 to 250 Hz, and 3 to 50 kHz, respectively. The High Pass function is particularly useful in avoiding power-gobbling rumble in systems not designed to reproduce extreme lows. For ease of hookup, any of three types of connections may be used for each input and output: XLR (balanced), 1/4" TRS phone (balanced or unbalanced), and RCA (unbalanced). The extra outputs may be used if, for example, a signal split is needed to feed both a tape recorder and a PA system. l l l l l l l l DESCRIPTION RackRider's newest line of graphic equalizers have the features and performance you need for any sound reinforcement, room equalization, or recording application. The single-channel RR-131 and dual-channel RR-231 divide the audio frequency spectrum into 31 bands, each spaced 1/3 of an octave apart, while the dual-channel RR-215 divides the spectrum into 15 bands, each spaced 2/3 of an octave apart. The actual center frequencies chosen are those designated as standards by the ISO. Each slider allows an EQ RackRider ® products are designed and imported exclusively by: Furman Sound, Inc. · Petaluma, CA 94954, USA Phone: (707) 763-1010 · Fax: (707) 763-1310 · Web: www. furmansound. com · E-mail: info@furmansound. com Rear Views, RR-215, RR-131, RR-231 CONTROLS AND INDICATORS Power on-off Range: Allows selection of ±6 dB or ±12 dB boost or cut. Color-coded LED's indicate the range selected. Bypass: Toggles the EQ between IN and OUT (bypassed). Low Pass Filter: Decreases the higher frequencies. [. . . ] Warranty service is provided by Furman at the address below. Channels: Bands per Channel: Boost/Cut Range: Slider Travel: Input Connections: Impedance: Maximum Levels: Signal to Noise Ratio: Distortion: Frequency Response: High Pass Filter: Low Pass Filter: Dimensions (W X D X H): Weight: Power Requirements: Safety Agency Approvals: 3 0 1 1 0 RR-131: one; RR-215, RR-231: two RR-215: 15 (25, 40, 63, 100, 160, 250, 400, 630, 1k, 1. 6k, 2. 5k, 4k, 6. 3k, 10k, 16k) RR-131, RR-231: 31 (20, 25, 31. 5, 40, 50, 63, 80, 100, 125, 160, 200, 250, 315, 400, 500, 630, 800, 1k, 1. 25k, 1. 6k, 2k, 2. 5k, 3. 15k, 4k, 5k, 6. 3k, 8k, 10k, 12. 5k, 16k, 20k) ±6 dB or ±12 dB, switch selectable 20 mm with center detent Active balanced XLR and ¼" TRS; unbalanced RCA Input: 20 k balanced; 15 k unbalanced; Output: Less than 600 Input: +18 dBV; Output: +16 dBV 93 dB at 1 kHz . 02% THD, 1 kHz, all sliders at center 20 Hz to 50 kHz, +0, -3 dB, all sliders at center RR-131, RR-231: 10 Hz To 250 Hz Variable; RR-215, 40 Hz fixed; 12 dB/octave RR-131, RR-231: 3 kHz To 50 kHz Variable; RR-215: 16 kHz fixed; 12 dB/octave RR-215, RR-131: 19" X 8. 66" X 1. 75"; RR-231: 19" X 8. 66" X 3. 5" RR-215, RR-131: 5. 22 lbs (2. 9 kg); RR-231: 9. 36 lbs (5. 2 kg) 100-120 VAC, 60 Hz, or 200-240 VAC, 50 Hz, switch selectable; 15 watts CE, TUV, EMC. Pending: NRTL 9 6 3 0 0 2 2 7 5 1 SPECIFICATIONS [. . . ]

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